import time
scale = 10
print("------执行开始-----")
for i in range(scale +1):
	a = "*" * i
	b = "." * (scale -i)
	c = (i/scale)*100
	print("\r{:3}%[{}->{}]".format(c,a,b),end="")
	time.sleep(1)
print("------执行结束-----")
